This is part of the Docker Series Course that I am presenting, the videos of which with practical example will be available soon. Part 1:- Docker Concepts - Orientation Part 2:- Docker Concepts - Edition Part 3:- Docker Concepts - Kitematic Part 4:- Docker Concepts - Docker Machine Part 5:- Docker Concepts - Docker Compose Part 6:- Docker Toolbox - Mac Part 7:- Docker Toolbox - Windows Part 8:- Docker Engine Installation - Mac Part 9:- Docker Engine Installation - Windows Part 10:- Docker Engine Installation - Linux Part 11:- Docker Machine Installation - Mac Part 12:- Docker Machine Installation - Windows Part 13:- Docker getting Started -Pre-requisites Part 14:-Docker on the Cloud - AWS Part 15:- Docker on the Cloud - Azure Part 16:- Running Containers Part 17:- Running Multiple Containers Part 18:- Getting Inside Containers Part 19:- Containers and Images Part 20:- Building an Application:Docker Build Part 21:- Building an Application:Docker File Part 22:- Docker Swarms Part 23:- Docker Stacks Part 24:- Docker Overview Part 25:- Docker Networks Part 26:- Docker Networks-Bridge Part 27:- Docker Networks-Host Part 28:- Docker Networks-Overlay Part 29:- Docker Networks-Macvlan Part 30:- Docker Networks-Advanced Container Networking Part 31:- Docker Storage:- Volumes Part 32:- Docker Storage:- Bind Mounts Part 33:- Docker Storage:- temps mounts Part 34:- Docker Storage:- Storage within Containers

1. Part 1:Docker Concepts
Orientation
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2. What we will learn ?
• What is Docker ?
• Images and Containers
• Containers andVirtual Machines
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5. Docker Concepts
• Docker is a platform for developers and sysadmins to develop,
deploy, and run applications with containers.
• The use of Linux containers to deploy applications is
called containerization. Containers are not new, but their use for
easily deploying applications.
Copyright 2018 Biswajit De

6. Containerization Advantages
• Flexible: Even the most complex applications can be
containerized.
• Lightweight: Containers leverage and share the host kernel.
• Interchangeable: You can deploy updates and upgrades on-the-fly.
• Portable: You can build locally, deploy to the cloud, and run
anywhere.
• Scalable: You can increase and automatically distribute container
replicas.
• Stackable: You can stack services vertically and on-the-fly.
Copyright 2018 Biswajit De

7. Images
• A container is launched by running an image. An image is an
executable package that includes everything needed to run an
application--the code, a runtime, libraries, environment variables,
and configuration files.
Copyright 2018 Biswajit De

8. Containers
• A container is a runtime instance of an image--what the image
becomes in memory when executed (that is, an image with state, or
a user process).You can see a list of your running containers with the
command, docker ps, just as you would in Linux.
Copyright 2018 Biswajit De

9. Containers & Virtual Machines
• A container runs natively on Linux and shares the kernel of the host
machine with other containers. It runs a discrete process, taking no
more memory than any other executable, making it lightweight.
• By contrast, a virtual machine (VM) runs a full-blown “guest”
operating system with virtual access to host resources through a
hypervisor. In general,VMs provide an environment with more
resources than most applications need.
Copyright 2018 Biswajit De

10. Containers & Virtual Machines
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11. What next -
• Understand the different versions of Docker.
• Docker CE
• Docker EE
• Install Docker on Linux
• Install Docker on Mac
• Install Docker onWindows
Copyright 2018 Biswajit De